# acanthaceous

CEFR C2 · Adjective

Source: https://englishreference.com/word/acanthaceous
Updated: 2026-05-26

## Definition

having leaves that are shaped like the spiny leaves of a holly tree. This describes a specific type of leaf shape found in some plants.

For teachers: having leaves with a spiny, prickly margin or surface, typically resembling the foliage of the genus Acanthus. Often used in botanical descriptions to specify leaf texture or edge characteristics.

## Examples

- The plant has acanthaceous leaves with sharp edges.
- The botanist noted that the specimen featured acanthaceous foliage, which helped identify it as a member of the Acanthaceae family.
- While many plants in the garden have smooth, broad leaves, this particular species exhibits acanthaceous characteristics, providing a striking contrast with its serrated, spiny margins.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.